<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="doLogin" method="post">
    用户名:<input type="text" name="userName"/><br>
    密码:<input type="password" name="userPwd"/><br>
    <input type="submit"/>
</form>
</body>

</html>